Oiling device for grinding-machines.



C. H. NORTON.

mums DEVICE FOR GRINDING MACHINES.

APPLICAT ON FILED APR. 23 1915.

Pz'ltvnted Juh' 25, 1910 1 o O Qw M o a a 4 we \m n V uilllllllll lll CHARLES H. NORTON, 'QF WORCESTER, MASSAGI JIUSETTS, ASSIGNOR 'lO. NORTON GRINDING COMPANY, OF WORCESTER,. MASSACHUSETTS, CORlPORATION 01 MASSACHUSETTS.

orLINc. nn'vicn. iron Grammars-MACHINES.

linemen.

Specification of Letter'slatent.

' Application filed April 28. 1915. I Serial No. 24,562 i To all-whom it may concern:

Be it known that I, Comm-1s a citizen of the United States. residing at \l 'orcesl'er. in the. county of \Vorcester and State of lllassachusetts, have invented a new 1 I and useful ()ihng Device. for .(lrlndmglllachines, of which the. following is a specification.

This invention relates to a grinding machine and more particularly to devices for Supplying oil to the hearings of the grind' in; wheel shaft. p

In commercial grinding machines, as at present designed, the grinding wheels are rotated at a very highspeed and the conditions of service are very severe. Aecorth ingly the prohlcin of an adequate oil supply has become very important. H

It is the object of my present invention to improv the construction of oiling devices in mechanism of the class descrihcd, attaining thereby increased simplicity in manufacture and greater elliciency in cperapended claims.

tion. With this object in view I have provided an oiling mechanism whiclris mounted upon the wheel shaftslide and is driven directly from the wheel shaft itself.

My invention further consists. in certain H. Non'r'on,

The specific construction of the bearings 13 and 14' forms no part of inypresent inatented Jilly 25, 1916.

jss

rention. hut it :navhe'stated that thc bear i I lugs shown each consist of two hearing elements separated by spaces 21 and. 22, which may he tilled with felt or other naterial \VllHll \Ylll permit :t'rec circulation of oil thcrethrough.

Within the casing 17 thereis secured a sleeve 23 having a straight portion which constitutes a bearing for a short shaft 24 and ha ring an enlarged portion at one end The pump chamber 25 is' thrust hearing 2-33, at, one end of the wheel shaft and adjacent the bearing ll. 7

may reach the. hmring 13 through the oil recess 'zzl (Fig. '3) while the oil passing through the hranchlil will pass dmvnward devices, arrangements and combinations of parts which will he hereinafter described and more particularly pointed out in the up- A preferred form of my invention is shown in the drawings, in which v Figure 1 1s a side elevatiom'bartly m section,;of my improved oiling mechanism, and

Fig. 2 is a vertical sectional view taken along the line 22 in Fig. 1.

Referring to thedrawings, the wheel slide is indicated at 10, and is longitudinallymcw able in inverted guides 11 forming a portion of the wheel slide support. The wheel shaft 12 is mounted in shaft bearings 13 and 14: which are supported iii arms or brackets 15 and 16 extending downwardly from. the

:trOlled by the speed ,ofthe grindingwhel I wheel slide 10 and forming portions thereof.

A. depending casingl'i is secured to the "lower end of the arm 16 and is provided with pockets 18 and 19 Within wh ch the oilreturned from the bearings is collected. The pocket 18 isconnected by a pipe 20430 the while the pocket 19 is'directely connected with the oil space of the bearing 14.

i will be evident that changes" and. modifiedoil space which underlies the bearing 13,

through the inlet 34 to an oil recess and thence thronglrrzuhal grooves 36 to an oil 7 he oil passing tlkl'fillflll the branch 31 space which communicates with the oil 0penings 21' and 22 of the hearing 14. v For a full description of the construction of the hearings and 14 and the thrust hearing reference is made to my com'pang on applications, Serial No. M561 and Ser. No. 279563, filed on even date herewith.

\Vith the construction above described,

the oil circulating mechanism is necessarily in operation whenever the wheel shaft .isin. rotation, the speed of the 011 pump is cone and shaftyand a pos tivecirculntion of the oil is assured at outl nes when the; grinding wheel is in operation By the location of the oil chambcr lbelow the wheel shaft and bearings I am enabled to utilize a gravity flow from the; bearings to'the oil pump, in while the-flow of the oil from the pump to the bearingsishpositive and direct.

Having thus described my invention it tions can be made therein hythoseskilled and I do not wish to be otherwise liiniicd to the details herein disclosed, but

11% I do claim i5:- 1.111 a grinding machinc, in combination, 5 a movable whocl slide, a wheel shaft. supported in hearings on said slide, means to rotate said shaft, and sclf-conlaincd means to producc a forccd circulation ofoil through said hearings, said oil-circulating moans hcing entirely snpgiiortcd by said slide and mo "able thcrcn'dh, and lacing positively and directly driven from the wheel shaft.

.2. In a grinding machine, in ron'dlinalion, a nn'n'ahlc Wheel slide, a wheel shaft sup ported in hearings on id slidc, moans to rolaic said shaft, and oil-supplying nwans for said hearings, said laitcr Inc-ans comprising an oil pump carricd hy said slide and movablc tlua'cwitli, a posiiivc driving conncction from said wliccl shaft to said pump, and

- oil-convcyingconnections lictwcen said pump and the shaft hcarings.

:l. in a grinding machine, in combination, a morahlc wheel slidc, a herd shaft supportcd in hearings on said slide, means to rotate said shaft and oil supplying, mcans for said hearings, said means comprising; an oil collecting rhainhvr carrivd ll) said slide liclon' the level of said hear ngs. oil conduct- 

